Canon today released new firmware for the Canon EOS 5D Mark IV.
Firmware Version 1.3.0 incorporates the following enhancements and fix:
Enables NFC connection with smartphones running Android 10 operating system.
*For Android running v6.0 or later, use Camera Connect v2.7.10 or later.
*For Android running v5.0 or older, use a connection method other than NFC.
Enables support for the .CR2 image file format on image.canon.
Fixes a phenomenon in which some camera operations may not be possible or an error may occur after an insufficient flash output is produced when shooting with the flash.
Download firmware v1.3.0 for the EOS 5D Mark IV at Canon USA